Deep-well pump.



veraf sacarse PATENT FFllBB..

:DEEE-WELL PUMP.

Application filed January 2, 1914.

To all wwm t may concern.'

Be it known that 1, JAMES M. EAs'THAM, a citizen of the United States, residing at Shreveport, Caddo parish, and State of Louisiana, have invented and discovered certain new and useful Improvements in Deep-Tell Pumps, of which the following is a specification.

My said invention consists in certain improvements in the details of construction and arrangement of parts of pumps for oil and other deep driven wells, whereby an e'fiicient pump for the purpose is provided, all as will be hereinafter more fully described and claimed.

Referring to the accompanying drawings, which are made a part hereof, and on which similar reference characters indicate similar parts,

Figure 1 is a vertical longitudinal section through a portion of a well casing, showing the piston packing casing and other parts in elevation,

Fig. 2 a similar view showing the piston packing casing, and piston also, in section,

Fig. 3 a perspective view of the packing elements separate, and

Fig. 4 a detail view of the lower end of the1 piston packing casing on an enlarged sca e.

1n said drawings the portions marked A' represent the well casing, B the piston packing casing, and C the piston rod.

r1`he well casing A is, or may be, of any approved construction and arrangement, the lower section A1 being formed with an internal shoulder as at a around its upper end on which the lower end of the piston packing casing is seated.

The piston packing casing B is cylindrical and has a section B1 of lead or other soft metal soldered, or otherwise rigidly secured thereto, the means being indicated as 10.

The piston C. is hollow and extends through the piston packing casing B into the section A1 beneath. It connects with a valve casing 11 at its top, an ordinary ball valve 12 being mounted therein. Packing material consisting of rings of felt or similar material 13 is interposed between the upper end of the lead section B1 of the casing B and a ring 141 a distance above said section. A coiled spring 15 is mounted between said ring 14 and another ring` 16 Specification of Letters Patent.

Patented Apr. .3, 19117.

Serial No. 809,884,

near the upper end of said casing B. Said spring 15 operates to keep the packing material 13 compressed and maintain a tight packing between said piston rod C and the surrounding casing.

In assembling the parts the tapered lead section B1 of the casing B is dropped and driven tightly into the section A1 of the well casing, the soft metal packing within shoulder a and serving to form a tight joint. A piston rod connection 16 is secured to the upper end of valve casing 11.

In operation, the piston reciprocating through the packing material in the piston packing casing in cooperation with valve 12, operates in the well known manner to raise the fluid from the well casing beneath the piston to the well casing above. By this construction a tight joint is maintained at all times and the piston packing and its casing may be easily removed from the well casing merely by withdrawing the piston A rod. operates to withdraw the entire internal structure being contained entirely within the circumference of the well casing and connected therewith only at the separable joint at shoulder a, and thus rendered very convenient for repair when necessary.

Having thus fully described my said invention, what 1 claim as new and desire to secure by Letters Patent is:

1. A deep well pump comprising a well casing formed with an inner annular shoulder, a piston adapted to operate within said casing provided with a valve, and a piston packing casing surrounding said piston and formed with a tapered soft metal portion through which said piston operates, said soft metal portion being adapted to be seated and compressed within said annular shoulder so as to bear closely upon said piston and form a packing therefor, substantially as set forth.

2. A deep well pump comprising a well casing formed with an internally projecting circumferential shoulder near its lower end, a piston adapted to operate within said casing formed with a valve at its upper end, a piston packing casing surrounding said piston and formed on its lower end with a tapered soft metal perforated tip through which said piston operates, said tapered soft metal tipbeing adapted to be seated and The withdrawal of the piston rod` compressed Within `said internal circummy hand and seal at Shreveport, Louisiana, erential shoulder so as to bear'closeiy upon this 25th day of November, A. D. nineteen said piston and form a packing therefor, hundred and thirteen.

and an additional spring-pressed packing JAMES M. EASTHAM. [11. s]

Within said packing casing, substantially as Witnesses: set forth. l J. C. PUGH. In Witness whereof, I have hereunto set y A R. WOLF.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Yatents,

Washington, D. C. 

